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From "Thomas Mueller (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-19) Consolidate JSON utilities
Date Fri, 16 Mar 2012 11:07:38 GMT

    [ https://issues.apache.org/jira/browse/OAK-19?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13231060#comment-13231060
] 

Thomas Mueller commented on OAK-19:
-----------------------------------

Yes, the parsers at org.apache.jackrabbit.oak.jcr.json offer a higher level abstraction than
what is in org.apache.jackrabbit.mk.json. Within MicroKernel implementations, possibly the
low-level abstractions are sufficient (a StAX parser for example), but within other components
the high-level abstractions (DOM based / event based) make sense. I believe the high-level
abstractions could be built on top of the low-level abstractions.

According to my tests, avoiding to generate String is a lot faster (as it completely avoids
escaping / de-escaping and copying), and requires much less memory. This is the reason for
JsopStream.

I wonder if we should try to keep all json / jsop related stuff in one project, and if yes
in which one.
                
> Consolidate JSON utilities
> --------------------------
>
>                 Key: OAK-19
>                 URL: https://issues.apache.org/jira/browse/OAK-19
>             Project: Jackrabbit Oak
>          Issue Type: Task
>          Components: core, jcr
>            Reporter: angela
>
> i seems confusing to me that we are having multiple different json utilities in the
> current oak stack:
> - a dependency to google-json 
> - a complete json utility including parser, json abstraction in oak-jcr (org.apache.jackrabbit.oak.jcr.json)
> - another json utility in org.apache.jackrabbit.mk.json containing tokenizer et. al.
> imo we should only have one single json utility and i would therefore suggest that
> we discuss this issue and try to reach a consensus which json-library we want to use.
> what do you think?

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